Feature Stories
Motion perception revisited: High Phi effect challenges established motion perception assumptions
(Medical Xpress)—Optical illusions abound in human visual perception, as demonstrated by the following well-known examples. Although many are static illusions, motion illusions also occur. Recently, scientists ...
Neuroscience
Apr 23, 2013 |
3 / 5 (2) |
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Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update)
(Medical Xpress)—The existential psychologist Rollo May wrote that "depression is the inability to construct a future"1 while Lionel Tiger stated that "optimism has been central to the process of human e ...
Neuroscience
Apr 02, 2013 |
4.5 / 5 (11) |
5
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The visual system as economist: Neural resource allocation in visual adaptation
(Medical Xpress)—It has long been held that in a new environment, visual adaptation should improve visual performance. However, evidence has contradicted this expectation: Adaptation sometimes not only ...
Neuroscience
Mar 30, 2013 |
5 / 5 (2) |
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Separate lives: Neuronal and organismal lifespans decoupled
(Medical Xpress)—Replicative aging (also known as replicative senescence) causes mammalian cells to undergo a process of growth arrest dependent on telomeres (the shortening of repeated sequences at the ends o ...
Neuroscience
Mar 27, 2013 |
4.9 / 5 (8) |
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Sizing things up: The evolutionary neurobiology of scale invariance
(Medical Xpress)—Visual perception is far more complex and powerful than our experience suggests. Moreover, in attempting to both understand vision and implement it in a computational device, the fact that ...
Neuroscience
Feb 28, 2013 |
4.8 / 5 (10) |
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Step by step: Feature detection and combination in perceptual learning and object identification
(Medical Xpress)—The ease and immediacy with which we recognize familiar objects escapes our notice. However, a novel, ambiguous, or highly complex object requires practice to achieve such perceptual facility. ...
Neuroscience
Jan 11, 2013 |
3.7 / 5 (6) |
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Face the facts: Neural integration transforms unconscious face detection into conscious face perception
(Medical Xpress)—The apparent ease and immediacy of human perception is deceptive, requiring highly complex neural operations to determine the category of objects in a visual scene. Nevertheless, the human ...
Neuroscience
Dec 31, 2012 |
4.8 / 5 (9) |
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Do brain cells need to be connected to have meaning?
(Medical Xpress)—The classic theory of the brain is one of connections, in which the brain consists of a network of neurons that interact with each other to allow us to think, see, interpret, and understand ...
Neuroscience
Dec 04, 2012 |
4.9 / 5 (9) |
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Off the grid: Environmental novelty changes hippocampal firing patterns
(Medical Xpress)—The brain's two hippocampal formations – one in each hemisphere's temporal lobe, medial to the inferior horn of the lateral ventricle and typically referring to the dentate gyrus, the ...
Neuroscience
Nov 07, 2012 |
5 / 5 (5) |
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Of enzymes and aging: Tryptophan metabolism plays key role in aging and age-related neurological diseases
(Medical Xpress)—In the battle against aging and age-related neurological diseases such as Parkinson's and Alzheimer's, a key factor has long appeared to be the toxicity of proteins which tend to aggregate. ...
Medical research
Oct 05, 2012 |
4.7 / 5 (14) |
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Memory vs. Math: Same brain areas show inverse responses to recall and arithmetic
(Medical Xpress)—Scientists have historically relied on neuroimaging – but not electrophysiological – data when studying the human default mode network (DMN), a group of brain regions with lower activi ...
Neuroscience
Sep 17, 2012 |
4.8 / 5 (11) |
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Branching out: A mathematical law of dendritic connectivity
(Medical Xpress) -- That the brain is evolution at its finest is perhaps best demonstrated by the beauty, complexity and diversity of dendrites – tree-like structures that form neural circuits by connecting ...
Neuroscience
Jun 28, 2012 |
4.9 / 5 (10) |
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Of mice and mental models: Neuroscientific implications of risk-optimized behavior in the mouse
(Medical Xpress) -- Regardless of an organism’s biological complexity, every encephalized animal continuously makes under-informed behavioral choices that can have serious consequences. Despite its ubiquity, ...
Neuroscience
May 25, 2012 |
4.6 / 5 (7) |
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Limits to growth: Scientists identify key metastasis-enabling enzyme
(Medical Xpress) -- On the complex road to eradicating cancer, controlling or preventing metastatic growth initiated by primary tumors is high on the to-do list. A key area of such research is the development ...
Medical research
May 22, 2012 |
4.3 / 5 (9) |
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Seeing is as seeing does: Spatially-structured retinal input in early development of cortical maps
(Medical Xpress) -- Remarkably, cortical maps show that neurons in the primary visual cortex have specific preferences for the location and orientation of a given visual field stimulus – but how these ...
Neuroscience
Apr 26, 2012 |
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